Weather History for Helena, MT

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Week of July 7, 2013 through July 13, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 95 °F 88 °F 84 °F
Mean Temperature 75 °F 72 °F 69 °F
Min Temperature 59 °F 55 °F 50 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 10 7 4 48
Growing Degree Days (base 50) 26 22 19 154
Dew Point  
Dew Point 53 °F 42 °F 22 °F
Precipitation  
Precipitation 0.02 in 0.00 in 0.00 in 0.02 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 32 mph 7 mph 0 mph
Gust Wind 40 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.17 in 29.93 in 29.73 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Jul. 10, 2013 Rise Set
Actual Time 5:45 AM MDT 9:20 PM MDT
Civil Twilight 5:07 AM MDT 9:59 PM MDT
Nautical Twilight 4:16 AM MDT 10:49 PM MDT
Astronomical Twilight 3:07 AM MDT 11:57 PM MDT
Moon 8:21 AM MDT (7/10) 10:18 PM MDT (7/10)
Length of Visible Light 16h 51m
Length of Day
15h 35m
Waxing Crescent, 5% of the Moon is Illuminated
Jul 10
Waxing Crescent
Jul 15
First Quarter
Jul 22
Full
Jul 29
Last Quarter
Aug 6
New

Daily Weather History & Observations

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Jul high avg low high avg low high avg low high avg low high avg low high avg high sum  
7 89 73 56 52 47 40 77 48 19 29.96 29.87 29.77 10 10 10 18 6 23 0.00 Thunderstorm
8 84 72 59 53 47 35 72 48 23 30.06 29.93 29.86 10 10 10 22 8 31 T Rain , Thunderstorm
9 89 70 50 46 38 22 71 40 9 30.17 30.10 30.02 10 10 10 17 6 24 0.00  
10 95 75 54 46 38 29 55 33 10 30.07 29.94 29.77 10 10 10 26 4 37 0.00  
11 90 74 57 52 41 33 72 43 14 29.92 29.78 29.73 10 10 9 32 8 40 0.02 Rain
12 88 69 50 52 44 36 80 48 16 29.93 29.86 29.78 10 10 10 25 6 37 T Rain
13 84 70 56 44 39 30 62 39 15 30.12 30.00 29.88 10 10 10 22 9 35 0.00